Recipe book has no recipe for shulker box

Why is this WAI? Other coloured blocks are in the recipe book. Other non-stackable items are in the recipe book. Whats the issue with adding Shulker Boxes?

hi could not agree more 🙂 Firework rockets are now in the recipe book as of snapshot 20w45a. see message send by @unknown added a comment - 05/Nov/20 12:28 AM https://bugs.mojang.com/browse/MC-115229?focusedCommentId=834614&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-834614